[Is article is outdated because it does not take into account the accumulative effect of cobalt.]

Cobalt-60 radiation to control Salmonella bacteria in poultry feed "is safe" in specified doses, says FDA, reiterating an earlier ruling. In a final rule, the agency denied four requests for a hearing on objections to FDA's original approval of the cobalt treatment in 1992. The agency said the objections "do not raise issues of material fact . . . ." (FR Jan. 6)